/*
 * Copyright 2013 University of Padua, Italy
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package it.dei.unipd.healthservice.database;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import it.dei.unipd.healthservice.resource.*;

/**
 * Visualizza le fabbriche
 * 
 * @author Giorgio Vitale
 * @version 1.00
 */
public class ViewFabbricheDatabase {
	/**
	 * Interrogazione al database
	 */
	private static final String STATEMENT = "SELECT * FROM fabbrica ORDER BY login;";
	/**
	 * Interrogazione al database per una singola fabbrica
	 */
	private static final String FABBRICA_SINGOLA = "SELECT * FROM fabbrica WHERE login=? ORDER BY login;";
	/**
	 * Connessione al database
	 */
	private final Connection con;
	/**
	 * Risultati della ricerca
	 */
	private final List<Fabbrica> fabbriche;
	/**
	 * login da ricercare
	 */
	private final String login;
	/**
	 * Ricerca tutte le fabbriche
	 * 
	 * @param con connessione al database.
	 */
	public ViewFabbricheDatabase(Connection con) {
		this(con, null);
	}
	/**
	 * Ricerca una singola fabbrica
	 * 
	 * @param con
	 * @param login partita iva della fabbrica da cercare
	 */
	public ViewFabbricheDatabase(Connection con, String login){
		this.con = con;
		fabbriche = new ArrayList<Fabbrica>();
		this.login = login;
	}
	/**
	 * Esegue la ricerca.
	 * 
	 * @return una lista di ordini.
	 * @throws SQLException
	 *             in caso di problemi nell'accesso al database.
	 */
	public List<Fabbrica> search() throws SQLException {
		PreparedStatement pstmt = null;
		ResultSet rs = null;

		try {
			if (login==null)
				pstmt = con.prepareStatement(STATEMENT);
			else{
				pstmt = con.prepareStatement(FABBRICA_SINGOLA);
				pstmt.setString(1, login);
			}
			rs = pstmt.executeQuery();
			while (rs.next())
				try{
					fabbriche.add(new Fabbrica(rs.getString("login"), rs.getString("password"),
												rs.getString("stato"), rs.getString("provincia"),
												rs.getString("citta"), rs.getString("indirizzo"),
												rs.getString("cap")));
				}catch (IllegalArgumentException e){}
		}
		finally {
			if (rs != null)
				rs.close();
			if (pstmt != null)
				pstmt.close();
			con.close();
		}
		return fabbriche;
	}
}